diff --git a/src/ifcgeom/ConversionResult.h b/src/ifcgeom/ConversionResult.h
index 1577eb369d..d9f172e2de 100644
--- a/src/ifcgeom/ConversionResult.h
+++ b/src/ifcgeom/ConversionResult.h
@@ -220,6 +220,7 @@ namespace IfcGeom {
 		virtual ConversionResultShape* intersect(ConversionResultShape*) = 0;
 
 		virtual void map(OpaqueCoordinate<4>& from, OpaqueCoordinate<4>& to) = 0;
+		virtual void map(const std::vector<OpaqueCoordinate<4>>& from, const std::vector<OpaqueCoordinate<4>>& to) = 0;
 		virtual ConversionResultShape* moved(ifcopenshell::geometry::taxonomy::matrix4::ptr) const = 0;
 
 		virtual ~ConversionResultShape() {}
diff --git a/src/ifcgeom/kernels/cgal/CgalConversionResult.cpp b/src/ifcgeom/kernels/cgal/CgalConversionResult.cpp
index 28a0bdf77d..a53c92f70b 100644
--- a/src/ifcgeom/kernels/cgal/CgalConversionResult.cpp
+++ b/src/ifcgeom/kernels/cgal/CgalConversionResult.cpp
@@ -470,6 +470,10 @@ void ifcopenshell::geometry::CgalShape::map(OpaqueCoordinate<4>& from, OpaqueCoo
 	throw std::runtime_error("Not implemented");
 }
 
+void ifcopenshell::geometry::CgalShape::map(const std::vector<OpaqueCoordinate<4>>& from, const std::vector<OpaqueCoordinate<4>>& to) {
+	throw std::runtime_error("Not implemented");
+}
+
 #ifndef IFOPSH_SIMPLE_KERNEL
 
 void ifcopenshell::geometry::CgalShapeHalfSpaceDecomposition::Triangulate(ifcopenshell::geometry::Settings settings, const ifcopenshell::geometry::taxonomy::matrix4& place, IfcGeom::Representation::Triangulation* t, int surface_style_id) const {
@@ -653,4 +657,33 @@ void ifcopenshell::geometry::CgalShapeHalfSpaceDecomposition::map(OpaqueCoordina
 	shape_ = std::move(nw);
 }
 
+void ifcopenshell::geometry::CgalShapeHalfSpaceDecomposition::map(const std::vector<OpaqueCoordinate<4>>& froms, const std::vector<OpaqueCoordinate<4>>& tos) {
+	plane_map<Kernel_> mp;
+	if (froms.size() != tos.size()) {
+		throw std::runtime_error("Expected equal size");
+	}
+	auto it = froms.begin();
+	auto jt = tos.begin();
+	for (; it < froms.end(); ++it, ++jt) {
+		auto& from = *it;
+		auto& to = *jt;
+		mp.insert({
+			CGAL::Plane_3<Kernel_>(
+				std::static_pointer_cast<NumberEpeck>(from.values[0])->value(),
+				std::static_pointer_cast<NumberEpeck>(from.values[1])->value(),
+				std::static_pointer_cast<NumberEpeck>(from.values[2])->value(),
+				std::static_pointer_cast<NumberEpeck>(from.values[3])->value()
+			),
+			CGAL::Plane_3<Kernel_>(
+				std::static_pointer_cast<NumberEpeck>(to.values[0])->value(),
+				std::static_pointer_cast<NumberEpeck>(to.values[1])->value(),
+				std::static_pointer_cast<NumberEpeck>(to.values[2])->value(),
+				std::static_pointer_cast<NumberEpeck>(to.values[3])->value()
+			)
+			});
+	}
+	auto nw = shape_->map(mp);
+	shape_ = std::move(nw);
+}
+
 #endif
\ No newline at end of file
diff --git a/src/ifcgeom/kernels/cgal/CgalConversionResult.h b/src/ifcgeom/kernels/cgal/CgalConversionResult.h
index 0811b1968d..2764ba5230 100644
--- a/src/ifcgeom/kernels/cgal/CgalConversionResult.h
+++ b/src/ifcgeom/kernels/cgal/CgalConversionResult.h
@@ -237,6 +237,7 @@ namespace ifcopenshell { namespace geometry {
 		virtual ConversionResultShape* intersect(ConversionResultShape*);
 
 		virtual void map(OpaqueCoordinate<4>& from, OpaqueCoordinate<4>& to);
+		virtual void map(const std::vector<OpaqueCoordinate<4>>& from, const std::vector<OpaqueCoordinate<4>>& to);
 		virtual ConversionResultShape* moved(ifcopenshell::geometry::taxonomy::matrix4::ptr) const;
 	};
 
@@ -293,6 +294,7 @@ namespace ifcopenshell { namespace geometry {
 		virtual ConversionResultShape* intersect(ConversionResultShape*);
 
 		virtual void map(OpaqueCoordinate<4>& from, OpaqueCoordinate<4>& to);
+		virtual void map(const std::vector<OpaqueCoordinate<4>>& from, const std::vector<OpaqueCoordinate<4>>& to);
 		virtual ConversionResultShape* moved(ifcopenshell::geometry::taxonomy::matrix4::ptr) const;
 	};
 #endif
diff --git a/src/ifcgeom/kernels/opencascade/OpenCascadeConversionResult.cpp b/src/ifcgeom/kernels/opencascade/OpenCascadeConversionResult.cpp
index 723ecc585a..02edc17a4f 100644
--- a/src/ifcgeom/kernels/opencascade/OpenCascadeConversionResult.cpp
+++ b/src/ifcgeom/kernels/opencascade/OpenCascadeConversionResult.cpp
@@ -422,3 +422,7 @@ ConversionResultShape* ifcopenshell::geometry::OpenCascadeShape::moved(ifcopensh
 void ifcopenshell::geometry::OpenCascadeShape::map(OpaqueCoordinate<4>& from, OpaqueCoordinate<4>& to) {
 	throw std::runtime_error("Not implemented");
 }
+
+void ifcopenshell::geometry::OpenCascadeShape::map(const std::vector<OpaqueCoordinate<4>>& from, const std::vector<OpaqueCoordinate<4>>& to) {
+	throw std::runtime_error("Not implemented");
+}
diff --git a/src/ifcgeom/kernels/opencascade/OpenCascadeConversionResult.h b/src/ifcgeom/kernels/opencascade/OpenCascadeConversionResult.h
index 2046852255..a113573599 100644
--- a/src/ifcgeom/kernels/opencascade/OpenCascadeConversionResult.h
+++ b/src/ifcgeom/kernels/opencascade/OpenCascadeConversionResult.h
@@ -95,6 +95,7 @@ namespace ifcopenshell {
 			virtual ConversionResultShape* intersect(ConversionResultShape*);
 
 			virtual void map(OpaqueCoordinate<4>& from, OpaqueCoordinate<4>& to);
+			virtual void map(const std::vector<OpaqueCoordinate<4>>& from, const std::vector<OpaqueCoordinate<4>>& to);
 			virtual ConversionResultShape* moved(ifcopenshell::geometry::taxonomy::matrix4::ptr) const;
 		private:
 			TopoDS_Shape shape_;